Novel Structure of 3-Phase Phase-Locked Loop with Stiffness against Disturbances

These instructions provide basic guidelines for preparing papers for the PESC 2006 using desktop publishing software. PLL is a key item of power converter for power quality compensation and power flow control. This paper proposes a novel 3-phase PLL that is composed of ALC and PI controller. The operational principle was investigated through theoretical approach, and the performance was verified through computer simulations with MATLAB and experimental works with TMS320VC33 DSP board. The proposed 3-phase PLL shows accurate performance under the voltage disturbances such as sag, harmonics, and phase-angle jump